Solve the problem and write the answer using scientific notation.If the speed of light is 3.00 × 108 m/sec, how long does it take light to travel 
the distance from the sun to Mars?
A. 763 sec
B. 7.63 × 102 sec
C. 7.63 × 103 sec
D. 7.63 × 102 min
Answer: B
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Answer the following question involving a conversion within the USCS system.The customer bought a peck of flour. How many cubic inches of flour did he buy?
A. 268.8 in.3 B. 67.2 in.3 C. 537.6 in.3 D. 33.6 in.3
Solve the problem.If an investment of P dollars grows to A dollars in two years, the annual rate of return on the investment is given by 
Jared Spencer bought a collector's coin set for $770 and sold it two years later for $1192. What was the approximate annual rate of return of his investment? Round to the nearest tenth of a percent.
A. 19.4% B. 24.4% C. 27.4% D. 7.4%
Find the angle between the vectors u and v if 
and 
Round answer to two decimal places.
A. 36.87° B. 37.83° C. 38.28° D. 34.94° E. 35.63°
Determine the slope of the line.
A. -3 B. -5 C. 1 D. -7